Transactions of Materials and Heat Treatment

Title：Process optimization and optimal cavity layout scheme of one mold with four pieces for joint in small tonnage die forging hammer

Authors：

Unit：

KeyWords：

ClassificationCode：TG316

year,vol(issue):pagenumber：2020,45(7):35-40

Abstract：

For the pipe joint with right angle forged by a type of small tonnage die forging hammer, a forming method of one mold with four pieces for joint was presented. By analyzing the shape characteristics of joint and combining the forming energy of existing 31.5 kJ die forging hammer, the original forming scheme of one mold with one piece for joint was optimized as a forming scheme of one mold with four pieces. By means of changing the rotation angle of joint and calculating the minimum wall thickness of cavity, the cavity layout of joint was designed for many times, and the best layout of one mold with four pieces was optimized. Then, the forming processes of different blank sizes under different blow efficiencies were simulated, and the optimum forging process of one mold with four pieces for joint was obtained by comparative analysis. Finally, the feasibility and stability of process were verified by actual production. The results show that the joint production efficiency is increased by four times, and the material utilization rate is increased by 11% by process optimization and optimal cavity layout scheme.

Funds：

蒋起臣(1973-),男,学士，高级工程师 E-mail：whyjqc@sina.com 通讯作者：陈浩（1994-），男，硕士研究生 E-mail：1197029766@qq.com

Reference：

[1]文斌. 管接头和管件选用手册[M].北京：机械工业出版社,2006.

Wen B. Manual for Selection of Pipe Joints and Fittings [M]. Beijing: China Machine Press, 2006.

[2]朱小明. 无焊接液压管道技术及其发展趋势[J].通用机械,2006,(6)：96-99.

Zhu X M. Technology and development trend of non welded hydraulic pipeline [J]. General Machinery, 2006, (6): 96-99.

[3]吕野楠. 管接头挤压铸造成型工艺及模具设计[J].铸造技术,2012,33(4):469-470.

Lyu Y N. Squeeze casting process and die design of pipe joint [J]. Casting Technology, 2012,33(4): 469-470.

[4]庄武豪. 弯头与三通管接头分模锻造成形规律研究[D].武汉：武汉理工大学,2014.

Zhuang W H. Research on Forming Law of Elbow and Tee Joint by Split Die Forging [D]. Wuhan: Wuhan University of Technology, 2014.

[5]梁仰矩, 杨屹,杨刚,等.金属型铸造镁合金管接头工艺数值模拟[J].热加工工艺,2010,39(23):81-83,87.

Liang Y J, Yang Y, Yang G, et al. Numerical simulation of metal mold casting of magnesium alloy pipe joint process [J]. Hot Working Process, 2010,39 (23): 81-83,87.

[6]贾进, 杨尚磊, 倪维源, 等. 车用超高强钢22MnB5及22MnB5-Q235光纤激光焊接接头组织及性能的研究[J]. 中国激光, 2014, 41(10): 55-61.

Jia J, Yang S L, Ni W Y, et al. Microstructure and properties of fiber laser welded joints of motor ultrahighstrength steel 22MnB5 and 22MnB5-Q235[J]. Chinese Journal of Lasers, 2014, 41(10): 55-61.

[7]陈靖雨, 王晓南,吕凡,等.激光束摆动焊接低碳钢焊接接头的组织和力学性能[J].中国激光,2020,47(3):143-150.

Chen J Y, Wang X N, Lyu F, et al. Study on the microstructure and properties of low carbon steel welded joints by laser beam swing welding [J]. China Laser, 2020,47(3):143-150.

[8]张大伟. 复杂构件锻造预成形坯料设计综述[J].精密成形工程,2017,9(6):143-156.

Zhang D W. Review of preform design for forging complex components [J]. Precision Forming Engineering, 2017,9(6):143-156.

[9]周玉婷. 某飞机主起支撑接头锻件的锻造工艺分析及预成形优化设计[D].重庆：重庆大学,2018.

Zhou Y T. Forging Process Analysis and Preform Optimization Design of the Main Lifting Support Joint Forging of an Aircraft [D]. Chongqing: Chongqing University, 2018.

[10]任天娟. 铝合金接头成型工艺分析及模具结构设计[J].装备制造技术,2016,(3):172-173.

Ren T J. Forming process analysis and die structure design of aluminum alloy joint [J]. Equipment Manufacturing Technology, 2016, (3): 172-173.

[11]尹振入, 卢立伟,盛坤, 等.有限元分析锥台转角对镁合金板材成形性的影响[J].稀有金属,2018,42(5):470-476.

Yin Z R，Lu L W，Sheng K, et al. Finite element analysis of the influence of cone angle on the formability of magnesium alloy sheet[J]. Chinese Journal of Rare Metals,2018,42(5):470-476.

[12]董海涛, 张治民,宋志海.数值模拟技术在锻造成形中的应用[J].大型铸锻件,2007,(1):45-47.

Dong H T, Zhang Z M, Song Z H. Application of numerical simulation technology in forging [J]. Large Castings and Forgings, 2007, (1): 45-47.

[13]黄湘龙, 易幼平.飞机翼身接头模具设计及等温锻造工艺模拟[J].现代制造技术与装备,2019,(3):49-50,53.

Huang X L, Yi Y P. Die design and isothermal forging process simulation of aircraft wing body joint [J]. Modern Manufacturing Technology and Equipment, 2019, (3): 49-50, 53.

Service：

【This site has not yet opened Download Service】【Add Favorite】